NTSB Identification: DEN88FA115.
The docket is stored on NTSB microfiche number 37096.
Accident occurred Saturday, May 28, 1988 in JAMESTOWN, CO
Probable Cause Approval Date: 09/11/1989
Aircraft: MOONEY M20, registration: N5279B
Injuries: 3 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE PLT TOLD A FRIEND THAT HE WAS GOING TO CONDUCT A SIGHTSEEING FLT IN THE LOCAL AREA. RESIDENTS OF A SMALL TOWN 2 MILES FROM THE ACDT SITE SAID THE ACFT CIRCLED THE TOWN AT LOW ALT SEVERAL TIMES AT ABOUT THE TIME OF THE ACCIDENT. THERE WERE NO WITNESSES TO THE ACDT. THE SAR SATELITE PICKED UP THE ELT SIG AT 2125 AND THE WRECKAGE WAS FOUND BY A GROUND PARTY DURING THE NIGHT, AT 0150. A GLIDER PLT, WHO FLEW THRU THE AREA AT ABOUT THE TIME THE WITNESSES REPORTED SEEING THE ACFT, ALSO SAW AN ACFT MANEUVERING AT LOW ALT NEAR THE TOWN. HE SAID THE OUTSIDE AIR TEMP WAS 70 TO 75 DEG F AND THERE WERE DOWNDRAFTS, 500 TO 1,000 FPM IN THE AREA. THE DENSITY ALT AT THE ACDT SITE WAS CALCULATED TO BE ABOUT 11,000 FT AND THERE WERE 3 PERSONS ON BOARD THE ACFT. THE TERRAIN AT THE ACDT SITE IS ROUGH AND MOUNTAINOUS WITH SHARPLY RISING TERRAIN TO THE N,W, AND S. FOUR 5 GAL DRUMS WERE FOUND AT THE ACDT SITE AND A PLACARD FOR AUTO FUEL WAS FOUND ON THE PANEL. NO STC WAS ISSUED FOR THIS ACFT.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

PROPER ALTITUDE..NOT MAINTAINED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

AIRSPEED..NOT MAINTAINED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

STALL/SPIN..INADVERTENT..PILOT IN COMMAND




Contributing Factors

WEATHER CONDITION..DOWNDRAFT


Contributing Factors

WEATHER CONDITION..HIGH DENSITY ALTITUDE


Contributing Factors

TERRAIN CONDITION..RISING


Contributing Factors

IN-FLIGHT PLANNING/DECISION..IMPROPER..PILOT IN COMMAND

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